Abstract
A 1.05m diameter, horizontal-axis, battery-charging wind turbine was operated at St. Phillips, Nfld, during winter 1990–1991. Natural icing events were monitored. The most severe icing resulted from glaze ice accretion that formed in freezing rain and drizzle. Glaze ice profiles on one blade of the turbine were measured at several spanwise positions after icing events. These ice formations are presented in the form of scale diagrams and tables of offsets. Icing formed at the leading edge of the blade section in a qualitatively similar way to that formed on fixed aerofoil sections in similar conditions in icing wind tunnels. The rotation of the blades led to a larger amount of ice build up at the blade tips than at the blade roots. Ice covered the pressure side of the sections, but much of the suction side of the sections was clear of ice.
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